*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
.built-in-app{
    width: 303px;
    margin: auto;
}
.built-in-app .nav > li{
    list-style: none;
    display: inline-block;
    position: relative;
    padding: 8px 0;
    cursor: pointer;
    line-height: 20px;
    width: 34px;
    text-align: center;
    margin: 0 11px;
    color: #3C3C3C;
    font-weight: bold;
    font-size: 14px;
}
.built-in-app .nav > .active::after{
    content: "";
    border-bottom: 2px solid #F40;
    position: absolute;
    width: 100%;
    left: 0;
    bottom: -1px;
}
.built-in-app .main > div{
    display: none;
}
.built-in-app .main > .active{
    display: block;
}
.main .active ul li{
    list-style: none;
    margin: 9px 0;
}
.main .active a{
    font-size: 12px;
}
.main .active ul .foutr{
     display: inline;
}
.main .active .sss{
    color: #F40;
    text-decoration: none;
}
.main .active .zzz{
    color: #3C3C3C;
    text-decoration: none;
    padding-right: 17px;
}
.built-in-app .nav > li:hover{
    color: #F40;
}
.main .active  .gui li{
    line-height: 12px;
    height: 14px;
    width: 133px;
    overflow: hidden;
    float: left;
    padding-right: 12px;
}
.main .active  .gui .gui_1,.main .active  .gui .gui_2{
    margin-top: 8px;
}
.main .active  .gui li a,.main .active .lun .lun_2 a,.main .active .lun .lun_3 a,.main .active .lun .lun_4 a,.main .active .an .an_3 a,.main .active .an .an_4 a,.main .active .gong_3 a,.main .active .gong_4 a{
    text-decoration: none;
    color: #3C3C3C;
}
.main .active .lun .lun_1 a,.main .active .an .an_1 a,.main .active .an .an_2 a,.main .active .gong_1 a,.main .active .gong_2 a{
    color: #ff5000;
    text-decoration: none;
}
.main .active .lun li a{
    list-style: none;
    text-decoration: none;
}
.main .active .lun li,.main .active .an li,.main .active .gong li{
    display: inline-block;
    float: left;
    padding-right: 45px;
    margin-top: 1px;
}
.main .active .an li,.main .active .gong li {
padding-right: 20px;
}
